taylor



(No Model.)

W. H. TAYLOR.

PADLOCK.

No. 586,676. Patented July 20,1897.

1 IL.' Il lll UNiTnD STATES PATENT OFFICEc i VARREN II. TAYLOR, OF STANFORD, CONNECTICUT, ASSIGNOR TO THE YALE d: TO\VNE MANUFACTURING COMPANY, OF SAME PLACE.

PADLOCK.

SPECIFICATION forming part of Letters Patent No. 586,676, dated July 20, 1897.

Application nea. October 28,1896. serai No. 610,362. (No model.)

1'0 rtf/Z 'LU/0727, t may concern:

Be it known that I, 'WARREN II. TAYLOR, a citizen of the United States, and a resident of Stamford, in thc county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Padlocks, of which the following is a specification.

My invention relates to that type of padlocks wherein the shackle moves upward in a straight line until the toe of the shackle is freed from the lock-case and after which the heel of the shackle forms a pivot upon which the shackle may be swung around in a manner well known in suchlocks.

My invention consists in specially-arranged means, to be hereinafter described, whereby the shackle of such a lock is engaged at both ends for locking it, such means consisting, preferably, of independent bolts engaging, respectively, in notches formed in the toe and heel of the shackle, and which bolts are so arranged that one of them, which I will call the primary7 bolt, and which carries the fence or other intermediate part by which the bolt is brought under control of the tumblers or unlocking mechanism, is made to actuate the other one, which I will call the secondary bolt.

In the accompanying drawings, Figure l is an exterior View of a padlock constructed in accordance with my invention. Fig. 2 is a face View of the internal mechanism, as disclosed by the removal of one-half of the shell, and the front tumbler-plate. Figs. 3 and L.l are transverse sections taken, respectively, on the lines 3 3 and 4 a of Figs. l and 2. Figs. 6, 7, 8, and 9, respectively, represent by view in two directions the construction of the tuniblers, of the primary locking-bolt, of the socket and spring-seat for the shackle, of the secondary locking-bolt, and of one of the plates which confine the tumblers and form the guide or key way beyond the keyhole in the shell. Fig. l0 is a view similar to Fig. 2, but showing a modified arrangement of the secondary bolt; and Fig. ll represents the key which is adapted to set by the act of insertion the form of tumblers which I have illustrated.

l represents the shell of the lock. 2 is the shackle, which is formed with a guiding and pivoting post 3, working in socket 4, and having an enlarged shoulder 5 for impingement ot' the projecting spring 6, which is seated around the socket 4. This end of the shackle, which I call the heel, is also provided with a collar or ange 7, which engages the shell to limit the projection or outward movement ol' the shackle.

8 represents the primary bolt, which engages the notch 9 in the swinging end 2 of the shackle, which I call the toe, and which carries a fence l0, cooperating with tumblers ll in the usual manner. As. will be seen, it is necessary that the tumblers be concerted beneath the fence l() before the bolt S can be rocked upon its pivot S to release the toe ot' the shackle.

1S represents thc secondary bolt, which is pivoted at 14E and engages in a notch 15 in the heel or pivot-post of the shackle. This secondary bolt has awithdrawing-spring 16, which tends to hold said bolt out of engagement with its notch.

The primary bolt has formed upon it a swell 17, which when said primary bolt is in engagement with its notch presses against the secondary bolt, overcomes its spring 16, and holds it into engagement with notch l5. Both ends of the shackle are thereby eiectively locked by independent bolts and withdrawal of either the heel or toe by distorting the bow of the shackle is rendered impossible. In locking the shackle a projection 1S on the primary bolt S, adjacent to its engaging hook, receives impingement of the toe 2fL and causes the fence to be positively withdrawn from the tumblers and the secondary bolt to be positively projected into the notch which it engages.

lil and 20 represent the tumbler-springs, the former of which have a fixed bearing against the boss 2l of the primary bolt, while others are shorter and bear beneath the project-ion 18. Two Jfunctions are thereby perfo1med-'first, the shorter springs serve to retain the fence within the notches of the tumblers so long as the shackle remains out, and thereby adapts the primary bolt to be positively shifted. into engagement with the toe of the shackle and renders the use ot a spring-bolt unnecessary; second, the opposing forces for the several tumblers are dif- ICO ferentiated. By this means the very serious defect in many padlocks-namely, the possibility of'setting the tumblers by jarring the lock-is prevented.

In United States Letters Patent No. 567,206,

dated September 6, 1896, I claimed the broad idea of causing the tumblersto travel unequally When a creeping movement is imparted to them by jarring the lock. The means disclosed for, accomplishing this purpose Was making the tumblers of different Weights. In my present invention I accomplish the same purpose by making the springs of different strength.

In Fig. the secondary bolt 13 is piv? oted on the rivet 14 and its withdrawingspring 16a is coiled upon a post 22. The sWell 17 of the primary bolt controls the secondary bolt 13 in precisely the same manner as described with reference to the other form ofthis bolt.

The spring 16 in Fig. 2 and the spring 16a in Fig. 10 might be omitted, as the shapes of the ends of the secondary bolts and the angles of the shoulders on the shackle Which engage said bolts are obviously such that they will force said bolts out of engagement positively upon the projection of the shackle.

The socket t, which also serves as the spring seat, has an attaching-base 23 and steady-pin 24. is the tnmble1plate,which has perforations 26 to receive the rivets 27, upon Which the tumblers are pivoted, and 11n, upon which the secondary bolt 131 is pivoted. These tumbler-plates also have slots 28,Which form the keyway or guides beyond the keyhole 29 in the bottom of the shell 1. 30 represents the key.

Although my invention is not dependent upon any particular form of tumbler mechanism, I prefer to use a tumbler system substantially like that shown. When the notches of the tumblersare concerted, the fence is caused to enter them by the projection of the shackle (conveniently made automatic by means of a spring) and the parts remain with the fence within the notches until the shackle is again forced inward, When it engages the projection on the primary bolt and withdraws its fence from the tumblers to permit the latter to become disconcerted. At the same Itime the primary bolt forces the secondary bolt into locking relation with the heel of the shackle.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. In a padlock, the combination ot' a suitable shell, a shackle both ends of Which slide in and out in said shell, a pivoted primary bolt engaging one end of the shackle, and carrying at the other end a fence which coperates With the tumblers, a secondary lockingbolt engaging the other end of the shackle, and a swell on the primary bolt which engages the secondary bolt; said primary bolt also having a projection which receives impingement of the shackle as the latter is forced in, and thereby accomplishes the engagement of both bolts positively, as eX- plained.

2. In a lock, the combination of tumblers pivoted upon a common center, and springs individually applied to the respective tumblers and having bearings at their ends and being of different length, to differentiate their resisting powers, as explained.

3. In a lock, the combination of the pivoted bolt, the tumblers controlling said bolt, and springs controlling the respective tumblers, some of which bear upon the free end of the bolt and others of which bear upon the pivot boss of said bolt, for the purposes explained.

WARREN II. TAYLOR.

Vitnesses:

SOHUYLER MERRITT, Gno. E. WHITE. 

